ES2077889T3 - PROCEDURE FOR OBTAINING 2,4-DICHLORO-5-FLUORBENZONITRILE. - Google Patents

PROCEDURE FOR OBTAINING 2,4-DICHLORO-5-FLUORBENZONITRILE.

Info

Publication number
ES2077889T3
ES2077889T3 ES92102779T ES92102779T ES2077889T3 ES 2077889 T3 ES2077889 T3 ES 2077889T3 ES 92102779 T ES92102779 T ES 92102779T ES 92102779 T ES92102779 T ES 92102779T ES 2077889 T3 ES2077889 T3 ES 2077889T3
Authority
ES
Spain
Prior art keywords
fluorbenzonitrile
dichloro
procedure
obtaining
mol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES92102779T
Other languages
Spanish (es)
Inventor
Thomas Dr Schach
Theodor Dr Papenfuhs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of ES2077889T3 publication Critical patent/ES2077889T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C255/50—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/14—Preparation of carboxylic acid nitriles by reaction of cyanides with halogen-containing compounds with replacement of halogen atoms by cyano groups

Abstract

EL METODO PARA LA ELABORACION DE 2,4-DICLOR-5-FLUORBENZONITRIL SE LLEVA A CABO AL TRANSFORMAR 5-BROMO-2,4-DICLORFLUORBENZOL CON APROXIMADAMENTE DE 10 A 300% DE MOL DE COBRE (I)-CIANID EN PRESENCIA DE UN DISOLVENTE APROTICO Y POLAR DE 10 A 2000% DE MOL A TEMPERATURAS DE 100 A 250 C.THE METHOD FOR THE ELABORATION OF 2,4-DICLOR-5-FLUORBENZONITRIL IS CARRIED OUT BY TRANSFORMING 5-BROMO-2,4-DICLORFLUORBENZOL WITH APPROXIMATELY 10 TO 300% COPPER MOL (I) -CIANID IN THE PRESENCE OF A APROTIC AND POLAR SOLVENT FROM 10 TO 2000% MOL AT TEMPERATURES OF 100 TO 250 C.

ES92102779T 1991-02-20 1992-02-19 PROCEDURE FOR OBTAINING 2,4-DICHLORO-5-FLUORBENZONITRILE. Expired - Lifetime ES2077889T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4105187 1991-02-20

Publications (1)

Publication Number Publication Date
ES2077889T3 true ES2077889T3 (en) 1995-12-01

Family

ID=6425426

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92102779T Expired - Lifetime ES2077889T3 (en) 1991-02-20 1992-02-19 PROCEDURE FOR OBTAINING 2,4-DICHLORO-5-FLUORBENZONITRILE.

Country Status (7)

Country Link
US (1) US5187295A (en)
EP (1) EP0500083B1 (en)
JP (1) JP3217425B2 (en)
KR (1) KR100266926B1 (en)
CA (1) CA2061489A1 (en)
DE (1) DE59203617D1 (en)
ES (1) ES2077889T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137270A1 (en) * 1991-11-13 1993-05-19 Bayer Ag METHOD FOR PRODUCING 1,2,3-TRICYANOBENZENE, PHTHALOCYANINES OBTAINED FROM 1,2,3-TRICYANOBENZENE AND THEIR USE AS PIGMENTS
EP0608714B1 (en) * 1993-01-29 1997-05-02 Hoechst Aktiengesellschaft Process for preparing chlorinated 4,5-difluorobenzoic acids, -benzoic acid derivatives and -benzaldehyde
DE19507912A1 (en) * 1995-03-07 1996-09-12 Bayer Ag Process for the preparation of 2,4-dichloro-5-fluorobenzonitrile and 2,6-dichloro-3-fluorobenzonitrile

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009942A (en) * 1958-07-02 1961-11-21 Heyden Newport Chemical Corp Production of trichlorobenzoic acids
NL104319C (en) * 1959-04-28
NL290704A (en) * 1962-04-04
US3644471A (en) * 1969-01-15 1972-02-22 Tenneco Chem Production of 2 5-dichlorobenzonitrile
DE2814690A1 (en) * 1978-04-05 1979-10-18 Celamerck Gmbh & Co Kg PROCESS FOR THE PRODUCTION OF 2,5-DICHLORO-4-CYANOPHENOL
JPS58225053A (en) * 1982-06-23 1983-12-27 Daikin Ind Ltd Preparation of trifluoromethylbenzene derivative
JPS5998052A (en) * 1982-11-26 1984-06-06 Sanwa Kagaku Kenkyusho:Kk Preparation of 4-chloro-2-nitrobenzonitrile
FR2655648B1 (en) * 1989-12-11 1992-03-13 Isochem Sa DICHLORO-2,4-FLUORO-5-BENZONITRILE AND METHODS FOR ITS PREPARATION, ITS APPLICATION TO THE PREPARATION OF CHLORO-2-DIFLUORO-4,5-BENZOUIC ACID AND NEW PREPARATION PROCESS.

Also Published As

Publication number Publication date
JP3217425B2 (en) 2001-10-09
US5187295A (en) 1993-02-16
JPH04312563A (en) 1992-11-04
KR100266926B1 (en) 2000-09-15
EP0500083A3 (en) 1993-03-03
CA2061489A1 (en) 1992-08-21
EP0500083B1 (en) 1995-09-13
EP0500083A2 (en) 1992-08-26
KR920016411A (en) 1992-09-24
DE59203617D1 (en) 1995-10-19

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